Telescope stray light: early experience with SOFIA

Patrick Waddell; Eric E. Becklin; Ryan T. Hamilton; William D. Vacca; Michael Lachenmann

doi:10.1117/12.2237519

14 September 2016 Telescope stray light: early experience with SOFIA

Patrick Waddell, Eric E. Becklin, Ryan T. Hamilton, William D. Vacca, Michael Lachenmann

Proceedings Volume 9973, Infrared Remote Sensing and Instrumentation XXIV; 99730O (2016) https://doi.org/10.1117/12.2237519
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

Effective stray light control is a key requirement for wide dynamic range performance of scientific optical and infrared systems. SOFIA now has over 325 mission flights including extended southern hemisphere deployments; science campaigns using 7 different instrument configurations have been completed. The research observations accomplished on these missions indicate that the telescope and cavity designs are effective at suppressing stray light. Stray light performance impacts, such as optical surface contamination, from cavity environment conditions during mission flight cycles and while on-ground, have proved to be particularly benign. When compared with earlier estimates, far fewer large optics re-coatings are now anticipated, providing greater facility efficiency.

Conference Presentation

Citation Download Citation

Patrick Waddell, Eric E. Becklin, Ryan T. Hamilton, William D. Vacca, and Michael Lachenmann "Telescope stray light: early experience with SOFIA", Proc. SPIE 9973, Infrared Remote Sensing and Instrumentation XXIV, 99730O (14 September 2016); https://doi.org/10.1117/12.2237519

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